<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="css1.css"/>
</head>
<body>
<p>sadad</p>
<div class="wrap">
    <div class="child">1</div>
    <div class="child">2</div>
    <div class="child">3</div>
</div>
</body>
</html>